Quicksilver Primer Bulb 5/16" (8 mm) with 2 Hose Clamps — OEM 3‑Layer Low‑Permeation, Cold‑Resistant

Quicksilver 8M0061875 is a replacement primer bulb designed for 5/16" (8 mm) inside-diameter marine fuel lines and includes two hose clamps for a secure install.

This OEM-style primer bulb from Quicksilver fits Mercury and Quicksilver 5/16" (8 mm) fuel lines and is built for reliable manual fuel priming on outboard and inboard/outboard engines. Constructed from three layers of low-permeation rubber, the bulb prioritizes strength and long service life while remaining flexible in cold conditions down to about -15°C (5°F). The part is EPA-MERC-PB15 compliant and supplied with two hose clamps to simplify replacement and installation.

How will this primer bulb fit my boat’s fuel system?

If your system uses a 5/16" (8 mm) inside-diameter fuel hose and standard quick-disconnect fittings for Mercury/Quicksilver components, this bulb is dimensionally compatible. Always check your owner’s manual or existing fittings before purchase to confirm match and routing.

• Designed for 5/16" (8 mm) ID fuel hose
• Compatible with Mercury/Quicksilver OE-style quick-disconnect systems
• Includes two hose clamps for secure connection

Will this part resist fuel and environmental wear?

The bulb uses a three-layer low-permeation rubber construction to limit fuel vapor loss and resist degradation from gasoline exposure. However, Quicksilver advises caution with ethanol-blended fuels; long-term exposure to high ethanol concentrations is not recommended for marine engines or this component.

• Triple-layer rubber for reduced permeation and improved durability
• Functional down to approximately -15°C (5°F) for cold-weather performance
• Not recommended for prolonged use with high ethanol-content fuels

How easy is installation and what’s included?

Installation is straightforward for anyone familiar with fuel-line replacement: cut the old hose, slide on the clamps, insert the bulb ends, and tighten the clamps. The kit contains the primer bulb and two hose clamps so you have the basic hardware needed to secure the connections.

• Comes with two hose clamps for immediate installation
• Standard replacement size reduces need for adapters
• Simple hand tools (screwdriver) required for clamp tightening

How does buying Quicksilver parts help my engine maintenance?

Quicksilver supplies OEM-grade replacement components engineered to match Mercury Marine specifications, helping maintain engine reliability and fitment. Choosing a branded part reduces fit issues and supports consistent performance in routine maintenance and repairs.

• OEM-quality manufacturing and specification alignment
• Tested across marine conditions for dependable use
• Backed by a long-standing brand known in marine service

Who is this for: This primer bulb is intended for boat owners, marine technicians, and powersports enthusiasts who need a direct-fit replacement for 5/16" (8 mm) Mercury/Quicksilver fuel lines. It suits routine maintenance, seasonal rebuilds, and on-water repairs where a durable, OEM-compatible primer bulb and basic installation hardware are required. If your setup uses ethanol-heavy fuels, consider fuel-compatible alternatives or consult your engine manual before installation.